Closed-circuit television (CCTV) is the use of video cameras to transmit a signal to a specific place, on a limited set of monitors. It differs from broadcast television in that the signal is not openly transmitted, though it may employ point to point (P2P), point to multipoint, or mesh wireless links. Though almost all video cameras fit this definition, the term is most often applied to those used for surveillance in areas that may need monitoring such as banks, casinos, airports, military installations, and convenience stores. Videotelephony is seldom called "CCTV" but the use of video in distance education, where it is an important tool, is often so called.[1][2] In industrial plants, CCTV equipment may be used to observe parts of a process from a central control room, for example when the environment is not suitable for humans. CCTV systems may operate continuously or only as required to monitor a particular event. A more advanced form of CCTV, utilizing Digital Video Recorders (DVRs), provides recording for possibly many years, with a variety of quality and performance options and extra features (such as motion-detection and email alerts). More recently, decentralized IP-based CCTV cameras, some equipped with megapixel sensors, support recording directly to network-attached storage devices, or internal flash for completely stand-alone operation. Surveillance of the public using CCTV is particularly common in the United Kingdom, where there are reportedly more cameras per person than in any other country in the world.[3] There and elsewhere, its increasing use has triggered a debate about security versus privacy.

1. CCTV Closed-circuit television cameras By : JeevanM C

2. Closed-circuit television cameras

3. Topics of Presentation Types Introduction Applications ADVANTAGES Integrated systems

4. Closed-circuit television (CCTV) cameras can produce images or recordings for surveillance purposes, and can be either video cameras, or digital stills cameras. Marie van Brittan Brown was the inventor of the CCTV camera.

5. Closed-circuit television (CCTV) is the use of video cameras to transmit a signal to a specific place, on a limited set of monitors. It differs from broadcast television in that the signal is not openly transmitted, though it may employ point to point (P2P), point to multipoint, or mesh wireless links.

7. Black and White or Color

8. Indoor and Outdoor

9. Camera Design

11. Uses: Crime prevention and prevalence surveillance of car parks, hotel lobbies, building halls, buildings, public places etc Industrial processes surveillance of stock, car parks, ware­houses, receptions etc Criminal use surveillance of houses, yachts, garages etc Transport safety

13. These cameras can be purchased in any high street shop and can take excellent pictures in most situations.

14. The pixel resolution of the current models has easily reached 7 million pixels (7-mega pixels).

16. In Conclusion CCTV Camera remain the best utilization used for surveillance purposes and other advantages mentioned in this presentation.

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